10. Boiler
To produce steam each boiler converts energy, in the form of coal, into steam at a rate of 563 kilogrammes per second. The boiler is lined with steel tubing in which pure boiler feed water is turned to steam by the heat created from the combustion of coal.
Pauline says...
Each boiler is as high as a 15 storey modern office building and weighs 4,000 tonnes. Inside the boiler there is enough steel tubing to stretch the 480 kilometres (300 miles) from London to Newcastle.
